Telephone-booth.



J. B.. McDEVITT.

TELEPHONE BOOTH. APPLICATION FILED OCT. 8 I916. 1,274,914. Patented Aug. 6, 1918.

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: mmlim J. B. McDEVITT.

TELEPHONE BOOTH.

APPLICATION FILED OCT. 9, I9l6- 1,274,914. 4 Patented Aug. 6, 1918.

2 SHEETSSHEET 2..

in f; n

JAMES B. MODEVITT, OF CHICAGO, ILLINOIS.

TELEPHONE-BOOTH.

To all whom it may concern:

Be it known that I, JAMES B. MoDEvrrT, a citizen of the United States, residing at Chicago, in the county of Cook and State of IlllIlOlS, have invented new and'useful Improvements in Telephone-Booths, of

- which the following is a specification.

. .yvhich may be maintainedf'on' a more eco This invention relates to telephone booths such as are provided in stores and other places to give privacy to persons using the telephoneand to exclude extraneous noises.

As is well known, such booths areusually small, stufl'y and badly ventilated, and the invention therefore has for its object to provide a. well ventilated and sanitary booth,

nomical basis than booths of the ordinarytypea l The object stated is attained by means of a novel combination andarrangement of parts to be presently described and claimed and in order that thesame may be better:

understood, reference is hadto the accompanying drawings forming a part of this specification.

In the-drawings, Figure 1 is a front elevation of the booth; Fig. 2 is an enlarged cross-section thereof; Fig. 3 is a top plan view; Fig. 4 is an elevation of a series of booths,-partly in section, showing a modification, and Fig. 5 is \an elevation, partly in section, showing another embodiment ofthe invention.

Referring specifically to the drawings, 5 denotes a booth provided with a door 6 as usual. .In the top 7 of the booth is an opening in which is set and fixed a ventilator casing 8, open at the top and bottom. The bottom of the casing has an outstanding marginal flange 9 which serves as a retainer tosecure the casing in the opening. One end of. the casing opens into' -the booth and the other end opens into the atmosphere. The upper portion of the .casing is flared .and houses a fan 10 positioned horizontally and driven and supported by an electric mo tor 11 The fan blades .are shaped to exhaust air from the inside of the booth. l The motor is supported between two 0 posite clamp plates 12 having depending racket arms' 13 secured to the top 7 of the booth on the outside thereof, by'screws 14, with short coil sprin s15 interposed between the booth top and the headsof the screws to absorb the vibration of the motor.

Near the bottom of the. door 6, over a hood Specification of Letters Patent.

Application filed October a, 1916. Serial Ito-124,664. f j l are tapered coils so that they Patented Aug. 6, 19 8;

17 on the latter, is an" opening 16 to permit air to enter thebooth *when'the door is closed. There -'will be a slight upward movement of air in the booth on account of the draft between the bottom opening 16 and the top opening formed by thecasing 8, but a positive circulation of air is as- ;sured whenthe exhaust fan 10 is running,

drawing air'into'the" booth fromthe bottom and expellingit'at" the top. Thebooth is therefore kept well ventilated and also cooled in hot weather. neous noise will enter the booth through the ventilating openings, and the telephone turbed by such "noise."

In order that the fan 10 may be automatically controlled so 'that it will run only'iwhen a person enters the booth,-and

'-stop when the person leaves the booth, the following mechanism has been provided:

Above the floor 18 of the booth, is 10- cated a vertically movable false floor or. platform 18, the latterbeing hinged atone end. The hinge consists of aj rod 19 passing through the platform and protruding from the ends thereof, the protruding ends-being I I journaled in bearings 20 on the floor 18 next to the side walls of the booth. The free end of the platform rests on coiled springs 21 seating on the floor 18, said s rings serving to normally maintain the p atform elevated slightly from the floor. The springs may telescope latformis de ressed.

completely when the p e rod 22 is xed to A vertically slidab 18, and has its upper end bent to overlie a button switch 23 controllmg the circuit ofthe motor 11 and also a lamp 24 in the- 18!, the latter is'depressed, and through the.

rod 22 the switch 23 is operated to. turn on the fan 10- and the lamp'24, and when the person steps'ofi the platform on leaving the Very little extramay be used without the'listenerbeing dis- I and rises from; the free end of the platform booth'the'platform is elevated by the springs v 21 to its normal position, and through the rod 22 the switch 23 is operated to turn off i the fan and the lamp. The opening or closing of the door 6 of the booth does not affect the switch, and the latter is controlled solely bythe platform 18', so thatthere is no waste of current, and the circuit bein closed only when the platform is depresse and opened when the person steps off the same.

Where a series of booths arranged in proximity is employed, the structure shown in Fig. 4 may be used. Here, only the first booth in the series is provided wlth an exhaust fan 26 and a conduit 27 extends from ing booths.

exhaust. fan 30.

1. The combination with a booth having an air inlet and an air outlet, of a vertically tiltable floor section in the booth, an exhaust fan associated with the air outlet, an electric motor driving the fan, a switch controlling the motor circuit, saidswitch being separate and electrically isolated from the floor section, and a switch actuator operatively connected to the aforesaid floor section.

2. The combination with a booth having an air inlet and an air outlet, of a false floor in the booth pivotally supported at one end, springs supporting the other end of the floor, an exhaust fan associated with the air outlet, an electric motor driving the fan, a switch controlling the motor circuit, said switch being separate and electrically isolated from the floor section, and a switch actuator operatively connected to the aforesaid fioor section. w

3. The combination with a booth, of a ventilating fan associated therewith, an electric motor driving the fan, a switch controlling the motor circuit, a vertically tiltable floor section in the booth, "said floor.

section being separate and electrically isolated from the switch, and a switch actuator operatively connected to the aforesaid floor section.

4. The combination with a booth having a bottom air inlet and a top air outlet, of an,

exhaust fan associated with the air outlet, an electric motor driving the fan, a switch controlling the motor circuit, a vertically tiltable floor section in the booth, said floor section being separate and electrically isolated from the switch, and a switch actuator operativelyconn'ected to the aforesaid floor section. v

In testimony whereof I afiix my signature.

JAMES B. IMQDEVITT. 

